Augmented reality experiences using speech and text captions

ABSTRACT

Augmented reality experiences with an eyewear device including a position detection system and a display system are provided. The eyewear device acquires text from a user input, a data input, or a speech recognition system. The eyewear device presents a visual text graphic at a predefined location with respect to the eyewear on the display by the display system. The eyewear device allows the user to manipulate the visual text graphics in a number of ways.

TECHNICAL FIELD

Examples set forth in the present disclosure relate to the field ofaugmented reality (AR) and wearable mobile devices such as eyeweardevices. More particularly, but not by way of limitation, the presentdisclosure describes user interaction with virtual images to provide anaugmented reality experiences that utilize speech, text captions, orboth.

BACKGROUND

Many types of computers and electronic devices available today, such asmobile devices (e.g., smartphones, tablets, and laptops), handhelddevices, and wearable devices (e.g., smart glasses, digital eyewear,headwear, headgear, and head-mounted displays), include a variety ofcameras, sensors, wireless transceivers, input systems (e.g.,touch-sensitive surfaces, pointers), peripheral devices, displays, andgraphical user interfaces (GUIs) through which a user can interact withdisplayed content.

Augmented reality (AR) combines real objects in a physical environmentwith objects and displays the combination to a user. The combineddisplay gives the impression that the objects are authentically presentin the environment, especially when the objects appear and behave likethe real objects.

Advanced AR technologies, such as computer vision and object tracking,may be used to produce a perceptually enriched and immersive experience.Computer vision algorithms extract three-dimensional data about thephysical world from the data captured in digital images or video. Objectrecognition and tracking algorithms may be used to detect an object in adigital image or video, estimate its orientation or pose, and track itsmovement over time.

BRIEF DESCRIPTION OF THE DRAWINGS

Features of the various examples described will be readily understoodfrom the following detailed description, in which reference is made tothe figures. A reference numeral is used with each element in thedescription and throughout the several views of the drawing. When aplurality of similar elements is present, a single reference numeral maybe assigned to like elements, with an added lower-case letter referringto a specific element.

The various elements shown in the figures are not drawn to scale unlessotherwise indicated. The dimensions of the various elements may beenlarged or reduced in the interest of clarity. The several figuresdepict one or more implementations and are presented by way of exampleonly and should not be construed as limiting. Included in the drawingare the following figures:

FIG. 1A is a side view (right) of an example hardware configuration ofan eyewear device suitable for use in an augmented reality productionsystem;

FIG. 1B is a perspective, partly sectional view of a right corner of theeyewear device of FIG. 1A depicting a right visible-light camera, and acircuit board;

FIG. 1C is a side view (left) of an example hardware configuration ofthe eyewear device of FIG. 1A, which shows a left visible-light camera;

FIG. 1D is a perspective, partly sectional view of a left corner of theeyewear device of FIG. 1C depicting the left visible-light camera, and acircuit board;

FIGS. 2A and 2B are rear views of example hardware configurations of aneyewear device utilized in the augmented reality production system;

FIG. 3 is a diagrammatic depiction of a three-dimensional scene, a leftraw image captured by a left visible-light camera, and a right raw imagecaptured by a right visible-light camera;

FIG. 4 is a functional block diagram of an example augmented realityproduction system including a wearable device (e.g., an eyewear device)and a server system connected via various networks;

FIG. 5 is a diagrammatic representation of an example hardwareconfiguration for a mobile device of the augmented reality productionsystem of FIG. 4;

FIG. 6 is a schematic illustration of a user in an example environmentfor use in describing simultaneous localization and mapping;

FIG. 7 is a flow chart listing steps in an example method involvinggenerating visual text graphics and presenting the visual text graphicat a predefined location in the physical environment on a display;

FIG. 8 is a flow chart listing steps in an example method includingpresenting visual text graphics on the display and altering one or moreof the properties of the visual text graphic to a defined location inresponse to input from the user;

FIG. 9 is a flow chart listing steps in an example method includingsetting the visual text graphic at the predefined location in thedisplay in response to gaze direction of the user, other input from theuser, or a combination thereof;

FIGS. 10A and 10B are perspective illustrations of a virtual augmentedreality experience using visual text graphics;

FIGS. 11A, 11B, and 11C are perspective illustrations of a virtualaugmented reality experience using visual text graphics and altering oneor more of the properties of the visual text graphic;

FIGS. 12A and 12BB are perspective illustrations of a virtual augmentedreality experience using visual text graphics and setting the visualtext graphic at the predefined location in the display in response togaze direction of the user, input from the user, or a combinationthereof;

FIGS. 13A and 13B are perspective illustrations of a virtual augmentedreality experience using device comprising a microphone and configuredto recognize speech received via the microphone wherein recognizedspeech is converted text displayed as visual text graphics on thedisplay.

DETAILED DESCRIPTION

Various implementations and details are described with reference toexamples including a system for an augmented reality experiences withvisual text graphics and voice recognition. The eyewear device includesfunctionality to convert speech to text or to acquire text in anotherway. The text may be acquired using a typing accessory from the usersuch as a keypad or from other users via remote data connection (i.e.,internet or broadband network), or from a voice recognition modulewithin the eyewear device. The eyewear device may include functionalityto present the text at a predefined location with respect to theeyewear, which is visible to the user through the eyewear. For example,the text may appear in a caption located near the subject speaking thetext in the image seen through the eyewear. The eyewear device mayinclude functionality to move the text or text caption in the image byaltering gaze direction or hand gestures. The eyewear device may includefunctionality to capture an image including the text or text caption tobe saved or transmitted by the eyewear device.

The following detailed description includes systems, methods,techniques, instruction sequences, and computing machine programproducts illustrative of examples set forth in the disclosure. Numerousdetails and examples are included for the purpose of providing athorough understanding of the disclosed subject matter and its relevantteachings. Those skilled in the relevant art, however, may understandhow to apply the relevant teachings without such details. Aspects of thedisclosed subject matter are not limited to the specific devices,systems, and method described because the relevant teachings can beapplied or practice in a variety of ways. The terminology andnomenclature used herein is for the purpose of describing particularaspects only and is not intended to be limiting. In general, well-knowninstruction instances, protocols, structures, and techniques are notnecessarily shown in detail.

The terms “coupled” or “connected” as used herein refer to any logical,optical, physical, or electrical connection, including a link or thelike by which the electrical or magnetic signals produced or supplied byone system element are imparted to another coupled or connected systemelement. Unless described otherwise, coupled or connected elements ordevices are not necessarily directly connected to one another and may beseparated by intermediate components, elements, or communication media,one or more of which may modify, manipulate, or carry the electricalsignals. The term “on” means directly supported by an element orindirectly supported by the element through another element that isintegrated into or supported by the element.

The term “proximal” is used to describe an item or part of an item thatis situated near, adjacent, or next to an object or person; or that iscloser relative to other parts of the item, which may be described as“distal.” For example, the end of an item nearest an object may bereferred to as the proximal end, whereas the generally opposing end maybe referred to as the distal end.

The orientations of the eyewear device, other mobile devices, associatedcomponents and any other devices incorporating a camera, an inertialmeasurement unit, or both such as shown in any of the drawings, aregiven by way of example only, for illustration and discussion purposes.In operation, the eyewear device may be oriented in any other directionsuitable to the particular application of the eyewear device; forexample, up, down, sideways, or any other orientation. Also, to theextent used herein, any directional term, such as front, rear, inward,outward, toward, left, right, lateral, longitudinal, up, down, upper,lower, top, bottom, side, horizontal, vertical, and diagonal are used byway of example only, and are not limiting as to the direction ororientation of any camera or inertial measurement unit as constructed oras otherwise described herein.

Additional objects, advantages and novel features of the examples willbe set forth in part in the following description, and in part willbecome apparent to those skilled in the art upon examination of thefollowing and the accompanying drawings or may be learned by productionor operation of the examples. The objects and advantages of the presentsubject matter may be realized and attained by means of themethodologies, instrumentalities and combinations particularly pointedout in the appended claims.

Reference now is made in detail to the examples illustrated in theaccompanying drawings and discussed below.

FIG. 1A is a side view (right) of an example hardware configuration ofan eyewear device 100 which includes a touch-sensitive input device ortouchpad 181. As shown, the touchpad 181 may have a boundary that issubtle and not easily seen; alternatively, the boundary may be plainlyvisible or include a raised or otherwise tactile edge that providesfeedback to the user about the location and boundary of the touchpad181. In other implementations, the eyewear device 100 may include atouchpad on the left side.

The surface of the touchpad 181 is configured to detect finger touches,taps, and gestures (e.g., moving touches) for use with a GUI displayedby the eyewear device, on an image display, to allow the user tonavigate through and select menu options in an intuitive manner, whichenhances and simplifies the user experience.

Detection of finger inputs on the touchpad 181 can enable severalfunctions. For example, touching anywhere on the touchpad 181 may causethe GUI to display or highlight an item on the image display, which maybe projected onto at least one of the optical assemblies 180A, 180B.Double tapping on the touchpad 181 may select an item or icon. Slidingor swiping a finger in a particular direction (e.g., from front to back,back to front, up to down, or down to) may cause the items or icons toslide or scroll in a particular direction; for example, to move to anext item, icon, video, image, page, or slide. Sliding the finger inanother direction may slide or scroll in the opposite direction; forexample, to move to a previous item, icon, video, image, page, or slide.The touchpad 181 can be virtually anywhere on the eyewear device 100.

In one example, an identified finger gesture of a single tap on thetouchpad 181, initiates selection or pressing of a graphical userinterface element in the image presented on the image display of theoptical assembly 180A, 180B. An adjustment to the image presented on theimage display of the optical assembly 180A, 180B based on the identifiedfinger gesture can be a primary action which selects or submits thegraphical user interface element on the image display of the opticalassembly 180A, 180B for further display or execution.

As shown, the eyewear device 100 includes a right visible-light camera114B. As further described herein, two cameras 114A, 114B capture imageinformation for a scene from two separate viewpoints. The two capturedimages may be used to project a three-dimensional display onto an imagedisplay for viewing with 3D glasses.

The eyewear device 100 includes a right optical assembly 180B with animage display to present images, such as depth images. As shown in FIGS.1A and 1B, the eyewear device 100 includes the right visible-lightcamera 114B. The eyewear device 100 can include multiple visible-lightcameras 114A, 114B that form a passive type of three-dimensional camera,such as stereo camera, of which the right visible-light camera 114B islocated on a right corner 110B. As shown in FIGS. 1C-D, the eyeweardevice 100 also includes a left visible-light camera 114A.

Left and right visible-light cameras 114A, 114B are sensitive to thevisible-light range wavelength. Each of the visible-light cameras 114A,114B have a different frontward facing field of view which areoverlapping to enable generation of three-dimensional depth images, forexample, right visible-light camera 114B depicts a right field of view111B. Generally, a “field of view” is the part of the scene that isvisible through the camera at a particular position and orientation inspace. The fields of view 111A and 111B have an overlapping field ofview 304 (FIG. 3). Objects or object features outside the field of view111A, 111B when the visible-light camera captures the image are notrecorded in a raw image (e.g., photograph or picture). The field of viewdescribes an angle range or extent, which the image sensor of thevisible-light camera 114A, 114B picks up electromagnetic radiation of agiven scene in a captured image of the given scene. Field of view can beexpressed as the angular size of the view cone; i.e., an angle of view.The angle of view can be measured horizontally, vertically, ordiagonally.

In an example, visible-light cameras 114A, 114B have a field of viewwith an angle of view between 15° to 110°, for example 24°, and have aresolution of 480×480 pixels or greater. The “angle of coverage”describes the angle range that a lens of visible-light cameras 114A,114B or infrared camera 410 (see FIG. 2A) can effectively image.Typically, the camera lens produces an image circle that is large enoughto cover the film or sensor of the camera completely, possibly includingsome vignetting (e.g., a darkening of the image toward the edges whencompared to the center). If the angle of coverage of the camera lensdoes not fill the sensor, the image circle will be visible, typicallywith strong vignetting toward the edge, and the effective angle of viewwill be limited to the angle of coverage.

Examples of such visible-light cameras 114A, 114B include ahigh-resolution complementary metal-oxide-semiconductor (CMOS) imagesensor and a digital VGA camera (video graphics array) capable ofresolutions of 640 p (e.g., 640×480 pixels for a total of 0.3megapixels), 720p, 1080p, or more. Other examples of visible-lightcameras 114A, 114B that can capture high-definition (HD) still imagesand store them at a resolution of 1642 by 1642 pixels (or greater); orrecord high-definition video at a high frame rate (e.g., thirty to sixtyframes per second or more) and store the recording at a resolution of1216 by 1216 pixels (or greater).

The eyewear device 100 may capture image sensor data from thevisible-light cameras 114A, 114B along with geolocation data, digitizedby an image processor, for storage in a memory. The visible-lightcameras 114A, 114B capture respective left and right raw images in thetwo-dimensional space domain that comprise a matrix of pixels on atwo-dimensional coordinate system that includes an X-axis for horizontalposition and a Y-axis for vertical position. Each pixel includes a colorattribute value (e.g., a red pixel light value, a green pixel lightvalue, or a blue pixel light value); and a position attribute (e.g., anX-axis coordinate and a Y-axis coordinate).

In order to capture stereo images for later display as athree-dimensional projection, the image processor 412 (shown in FIG. 4)may be coupled to the visible-light cameras 114A, 114B to receive andstore the visual image information. The image processor 412, or anotherprocessor, controls operation of the visible-light cameras 114A, 114B toact as a stereo camera simulating human binocular vision and may add atimestamp to each image. The timestamp on each pair of images allowsdisplay of the images together as part of a three-dimensionalprojection. Three-dimensional projections produce an immersive,life-like experience that is desirable in a variety of contexts,including virtual reality (VR) and video gaming.

FIG. 1B is a perspective, cross-sectional view of a right corner 110B ofthe eyewear device 100 of FIG. 1A depicting the right visible-lightcamera 114B of the camera system, and a circuit board. FIG. 1C is a sideview (left) of an example hardware configuration of an eyewear device100 of FIG. 1A, which shows a left visible-light camera 114A of thecamera system. FIG. 1D is a perspective, cross-sectional view of a leftcorner 110A of the eyewear device of FIG. 1C depicting the leftvisible-light camera 114A of the three-dimensional camera, and a circuitboard.

Construction and placement of the left visible-light camera 114A issubstantially similar to the right visible-light camera 114B, except theconnections and coupling are on the left lateral side 170A. As shown inthe example of FIG. 1B, the eyewear device 100 includes the rightvisible-light camera 114B and a circuit board 140B, which may be aflexible printed circuit board (PCB). The right hinge 126B connects theright corner 110B to a right temple 125B of the eyewear device 100. Insome examples, components of the right visible-light camera 114B, theflexible PCB 140B, or other electrical connectors or contacts may belocated on the right temple 125B or the right hinge 126B.

The right corner 110B includes corner body 190 and a corner cap, withthe corner cap omitted in the cross-section of FIG. 1B. Disposed insidethe right corner 110B are various interconnected circuit boards, such asPCBs or flexible PCBs, that include controller circuits for rightvisible-light camera 114B, microphone(s), low-power wireless circuitry(e.g., for wireless short range network communication via Bluetooth™),high-speed wireless circuitry (e.g., for wireless local area networkcommunication via Wi-Fi).

The right visible-light camera 114B is coupled to or disposed on theflexible PCB 140B and covered by a visible-light camera cover lens,which is aimed through opening(s) formed in the frame 105. For example,the right rim 107B of the frame 105, shown in FIG. 2A, is connected tothe right corner 110B and includes the opening(s) for the visible-lightcamera cover lens. The frame 105 includes a front side configured toface outward and away from the eye of the user. The opening for thevisible-light camera cover lens is formed on and through the front oroutward-facing side of the frame 105. In the example, the rightvisible-light camera 114B has an outward-facing field of view 111B(shown in FIG. 3) with a line of sight or perspective that is correlatedwith the right eye of the user of the eyewear device 100. Thevisible-light camera cover lens can also be adhered to a front side oroutward-facing surface of the right corner 110B in which an opening isformed with an outward-facing angle of coverage, but in a differentoutwardly direction. The coupling can also be indirect via interveningcomponents.

As shown in FIG. 1B, flexible PCB 140B is disposed inside the rightcorner 110B and is coupled to one or more other components housed in theright corner 110B. Although shown as being formed on the circuit boardsof the right corner 110B, the right visible-light camera 114B can beformed on the circuit boards of the left corner 110A, the temples 125A,125B, or the frame 105.

FIGS. 2A and 2B are perspective views, from the rear, of examplehardware configurations of the eyewear device 100, including twodifferent types of image displays. The eyewear device 100 is sized andshaped in a form configured for wearing by a user; the form ofeyeglasses is shown in the example. The eyewear device 100 can takeother forms and may incorporate other types of frameworks; for example,a headgear, a headset, or a helmet.

In the eyeglasses example, eyewear device 100 includes a frame 105including a left rim 107A connected to a right rim 107B via a bridge 106adapted to be supported by a nose of the user. The left and right rims107A, 107B include respective apertures 175A, 175B, which hold arespective optical element 180A, 180B, such as a lens and a displaydevice. As used herein, the term “lens” is meant to include transparentor translucent pieces of glass or plastic having curved or flat surfacesthat cause light to converge/diverge or that cause little or noconvergence or divergence.

Although shown as having two optical elements 180A, 180B, the eyeweardevice 100 can include other arrangements, such as a single opticalelement (or it may not include any optical element 180A, 180B),depending on the application or the intended user of the eyewear device100. As further shown, eyewear device 100 includes a left corner 110Aadjacent the left lateral side 170A of the frame 105 and a right corner110B adjacent the right lateral side 170B of the frame 105. The corners110A, 110B may be integrated into the frame 105 on the respective sides170A, 170B (as illustrated) or implemented as separate componentsattached to the frame 105 on the respective sides 170A, 170B.Alternatively, the corners 110A, 110B may be integrated into temples(not shown) attached to the frame 105.

In one example, the image display of optical assembly 180A, 180Bincludes an integrated image display. As shown in FIG. 2A, each opticalassembly 180A, 180B includes a suitable display matrix 177, such as aliquid crystal display (LCD), an organic light-emitting diode (OLED)display, or any other such display. Each optical assembly 180A, 180Balso includes an optical layer or layers 176, which can include lenses,optical coatings, prisms, mirrors, waveguides, optical strips, and otheroptical components in any combination. The optical layers 176A, 176B, .. . 176N (shown as 176A-N in FIG. 2A and herein) can include a prismhaving a suitable size and configuration and including a first surfacefor receiving light from a display matrix and a second surface foremitting light to the eye of the user. The prism of the optical layers176A-N extends over all or at least a portion of the respectiveapertures 175A, 175B formed in the left and right rims 107A, 107B topermit the user to see the second surface of the prism when the eye ofthe user is viewing through the corresponding left and right rims 107A,107B. The first surface of the prism of the optical layers 176A-N facesupwardly from the frame 105 and the display matrix 177 overlies theprism so that photons and light emitted by the display matrix 177impinge the first surface. The prism is sized and shaped so that thelight is refracted within the prism and is directed toward the eye ofthe user by the second surface of the prism of the optical layers176A-N. In this regard, the second surface of the prism of the opticallayers 176A-N can be convex to direct the light toward the center of theeye. The prism can optionally be sized and shaped to magnify the imageprojected by the display matrix 177, and the light travels through theprism so that the image viewed from the second surface is larger in oneor more dimensions than the image emitted from the display matrix 177.

In one example, the optical layers 176A-N may include an LCD layer thatis transparent (keeping the lens open) unless and until a voltage isapplied which makes the layer opaque (closing or blocking the lens). Theimage processor 412 on the eyewear device 100 may execute programming toapply the voltage to the LCD layer in order to produce an active shuttersystem, making the eyewear device 100 suitable for viewing visualcontent when displayed as a three-dimensional projection. Technologiesother than LCD may be used for the active shutter mode, including othertypes of reactive layers that are responsive to a voltage or anothertype of input.

In another example, the image display device of optical assembly 180A,180B includes a projection image display as shown in FIG. 2B. Eachoptical assembly 180A, 180B includes a laser projector 150, which is athree-color laser projector using a scanning mirror or galvanometer.During operation, an optical source such as a laser projector 150 isdisposed in or on one of the temples 125A, 125B of the eyewear device100. Optical assembly 180B in this example includes one or more opticalstrips 155A, 155B, . . . 155N (shown as 155A-N in FIG. 2B) which arespaced apart and across the width of the lens of each optical assembly180A, 180B or across a depth of the lens between the front surface andthe rear surface of the lens.

As the photons projected by the laser projector 150 travel across thelens of each optical assembly 180A, 180B, the photons encounter theoptical strips 155A-N. When a particular photon encounters a particularoptical strip, the photon is either redirected toward the user's eye, orit passes to the next optical strip. A combination of modulation oflaser projector 150, and modulation of optical strips, may controlspecific photons or beams of light. In an example, a processor controlsoptical strips 155A-N by initiating mechanical, acoustic, orelectromagnetic signals. Although shown as having two optical assemblies180A, 180B, the eyewear device 100 can include other arrangements, suchas a single or three optical assemblies, or each optical assembly 180A,180B may have arranged different arrangement depending on theapplication or intended user of the eyewear device 100.

As further shown in FIGS. 2A and 2B, eyewear device 100 includes a leftcorner 110A adjacent the left lateral side 170A of the frame 105 and aright corner 110B adjacent the right lateral side 170B of the frame 105.The corners 110A, 110B may be integrated into the frame 105 on therespective lateral sides 170A, 170B (as illustrated) or implemented asseparate components attached to the frame 105 on the respective sides170A, 170B. Alternatively, the corners 110A, 110B may be integrated intotemples 125A, 125B attached to the frame 105.

In another example, the eyewear device 100 shown in FIG. 2B may includetwo projectors, a left projector 150A (not shown) and a right projector150B (shown as projector 150). The left optical assembly 180A mayinclude a left display matrix 177A (not shown) or a left set of opticalstrips 155′A, 155′B, . . . 155′N (155 prime, A through N, not shown)which are configured to interact with light from the left projector150A. Similarly, the right optical assembly 180B may include a rightdisplay matrix 177B (not shown) or a right set of optical strips 155″A,155″B, . . . 155″N (155 double prime, A through N, not shown) which areconfigured to interact with light from the right projector 150B. In thisexample, the eyewear device 100 includes a left display and a rightdisplay.

FIG. 3 is a diagrammatic depiction of a three-dimensional scene 306, aleft raw image 302A captured by a left visible-light camera 114A, and aright raw image 302B captured by a right visible-light camera 114B. Theleft field of view 111A may overlap, as shown, with the right field ofview 111B. The overlapping field of view 304 represents that portion ofthe image captured by both cameras 114A, 114B. The term ‘overlapping’when referring to field of view means the matrix of pixels in thegenerated raw images overlap by thirty percent (30%) or more.‘Substantially overlapping’ means the matrix of pixels in the generatedraw images—or in the infrared image of scene—overlap by fifty percent(50%) or more. As described herein, the two raw images 302A, 302B may beprocessed to include a timestamp, which allows the images to bedisplayed together as part of a three-dimensional projection.

For the capture of stereo images, as illustrated in FIG. 3, a pair ofraw red, green, and blue (RGB) images are captured of a real scene 306at a given moment in time—a left raw image 302A captured by the leftcamera 114A and right raw image 302B captured by the right camera 114B.When the pair of raw images 302A, 302B are processed (e.g., by the imageprocessor 412), depth images are generated. The generated depth imagesmay be viewed on an optical assembly 180A, 180B of an eyewear device, onanother display (e.g., the image display 580 on a mobile device 401), oron a screen.

The generated depth images are in the three-dimensional space domain andcan comprise a matrix of vertices on a three-dimensional locationcoordinate system that includes an X axis for horizontal position (e.g.,length), a Y axis for vertical position (e.g., height), and a Z axis fordepth (e.g., distance). Each vertex may include a color attribute (e.g.,a red pixel light value, a green pixel light value, or a blue pixellight value); a position attribute (e.g., an X location coordinate, a Ylocation coordinate, and a Z location coordinate); a texture attribute;a reflectance attribute; or a combination thereof. The texture attributequantifies the perceived texture of the depth image, such as the spatialarrangement of color or intensities in a region of vertices of the depthimage.

In one example, the interactive augmented reality system 400 (FIG. 4)includes the eyewear device 100, which includes a frame 105 and a lefttemple 110A extending from a left lateral side 170A of the frame 105 anda right temple 125B extending from a right lateral side 170B of theframe 105. The eyewear device 100 may further include at least twovisible-light cameras 114A, 114B having overlapping fields of view. Inone example, the eyewear device 100 includes a left visible-light camera114A with a left field of view 111A, as illustrated in FIG. 3. The leftcamera 114A is connected to the frame 105 or the left temple 110A tocapture a left raw image 302A from the left side of scene 306. Theeyewear device 100 further includes a right visible-light camera 114Bwith a right field of view 111B. The right camera 114B is connected tothe frame 105 or the right temple 125B to capture a right raw image 302Bfrom the right side of scene 306.

FIG. 4 is a functional block diagram of an example interactive augmentedreality system 400 that includes a wearable device (e.g., an eyeweardevice 100), a mobile device 401, and a server system 498 connected viavarious networks 495 such as the Internet. The interactive augmentedreality system 400 includes a low-power wireless connection 425 and ahigh-speed wireless connection 437 between the eyewear device 100 andthe mobile device 401.

As shown in FIG. 4, the eyewear device 100 includes one or morevisible-light cameras 114A, 114B that capture still images, videoimages, or both still and video images, as described herein. The cameras114A, 114B may have a direct memory access (DMA) to high-speed circuitry430 and function as a stereo camera. The cameras 114A, 114B may be usedto capture initial-depth images that may be rendered intothree-dimensional (3D) models that are texture-mapped images of a red,green, and blue (RGB) imaged scene. The device 100 may also include adepth sensor 213, which uses infrared signals to estimate the positionof objects relative to the device 100. The depth sensor 213 in someexamples includes one or more infrared emitter(s) 215 and infraredcamera(s) 410.

The eyewear device 100 further includes two image displays of eachoptical assembly 180A, 180B (one associated with the left side 170A andone associated with the right side 170B). The eyewear device 100 alsoincludes an image display driver 442, an image processor 412, low-powercircuitry 420, and high-speed circuitry 430. The image displays of eachoptical assembly 180A, 180B are for presenting images, including stillimages, video images, or still and video images. The image displaydriver 442 is coupled to the image displays of each optical assembly180A, 180B in order to control the display of images.

The eyewear device 100 additionally includes one or more speakers 440(e.g., one associated with the left side of the eyewear device andanother associated with the right side of the eyewear device). Thespeakers 440 may be incorporated into the frame 105, temples 125, orcorners 110 of the eyewear device 100. The one or more speakers 440 aredriven by audio processor 443 under control of low-power circuitry 420,high-speed circuitry 430, or both. The speakers 440 are for presentingaudio signals including, for example, a beat track. The audio processor443 is coupled to the speakers 440 in order to control the presentationof sound.

The components shown in FIG. 4 for the eyewear device 100 are located onone or more circuit boards, for example a printed circuit board (PCB) orflexible printed circuit (FPC), located in the rims or temples.Alternatively, or additionally, the depicted components can be locatedin the corners, frames, hinges, or bridge of the eyewear device 100.Left and right visible-light cameras 114A, 114B can include digitalcamera elements such as a complementary metal-oxide-semiconductor (CMOS)image sensor, a charge-coupled device, a lens, or any other respectivevisible or light capturing elements that may be used to capture data,including still images or video of scenes with unknown objects.

As shown in FIG. 4, high-speed circuitry 430 includes a high-speedprocessor 432, a memory 434, and high-speed wireless circuitry 436. Inthe example, the image display driver 442 is coupled to the high-speedcircuitry 430 and operated by the high-speed processor 432 in order todrive the left and right image displays of each optical assembly 180A,180B. High-speed processor 432 may be any processor capable of managinghigh-speed communications and operation of any general computing systemneeded for eyewear device 100. High-speed processor 432 includesprocessing resources needed for managing high-speed data transfers onhigh-speed wireless connection 437 to a wireless local area network(WLAN) using high-speed wireless circuitry 436.

In some examples, the high-speed processor 432 executes an operatingsystem such as a LINUX operating system or other such operating systemof the eyewear device 100 and the operating system is stored in memory434 for execution. In addition to any other responsibilities, thehigh-speed processor 432 executes a software architecture for theeyewear device 100 that is used to manage data transfers with high-speedwireless circuitry 436. In some examples, high-speed wireless circuitry436 is configured to implement Institute of Electrical and ElectronicEngineers (IEEE) 802.11 communication standards, also referred to hereinas Wi-Fi. In other examples, other high-speed communications standardsmay be implemented by high-speed wireless circuitry 436.

The low-power circuitry 420 includes a low-power processor 422 andlow-power wireless circuitry 424. The low-power wireless circuitry 424and the high-speed wireless circuitry 436 of the eyewear device 100 caninclude short-range transceivers (Bluetooth™ or Bluetooth Low-Energy(BLE)) and wireless wide, local, or wide-area network transceivers(e.g., cellular or Wi-Fi). Mobile device 401, including the transceiverscommunicating via the low-power wireless connection 425 and thehigh-speed wireless connection 437, may be implemented using details ofthe architecture of the eyewear device 100, as can other elements of thenetwork 495.

Memory 434 includes any storage device capable of storing various dataand applications, including, among other things, camera data generatedby the left and right visible-light cameras 114A, 114B, the infraredcamera(s) 410, the image processor 412, and images generated for displayby the image display driver 442 on the image display of each opticalassembly 180A, 180B. Although the memory 434 is shown as integrated withhigh-speed circuitry 430, the memory 434 in other examples may be anindependent, standalone element of the eyewear device 100. In certainsuch examples, electrical routing lines may provide a connection througha chip that includes the high-speed processor 432 from the imageprocessor 412 or low-power processor 422 to the memory 434. In otherexamples, the high-speed processor 432 may manage addressing of memory434 such that the low-power processor 422 will boot the high-speedprocessor 432 any time that a read or write operation involving memory434 is needed.

As shown in FIG. 4, the high-speed processor 432 of the eyewear device100 can be coupled to the camera system (visible-light cameras 114A,114B), the image display driver 442, the user input device 491, and thememory 434. As shown in FIG. 5, the CPU 530 of the mobile device 401 maybe coupled to a camera system 570, a mobile display driver 582, a userinput layer 591, and a memory 540A.

The server system 498 may be one or more computing devices as part of aservice or network computing system, for example, that include aprocessor, a memory, and network communication interface to communicateover the network 495 with an eyewear device 100 and a mobile device 401.

The output components of the eyewear device 100 include visual elements,such as the left and right image displays associated with each lens oroptical assembly 180A, 180B as described in FIGS. 2A and 2B (e.g., adisplay such as a liquid crystal display (LCD), a plasma display panel(PDP), a light emitting diode (LED) display, a projector, or awaveguide). The eyewear device 100 may include a user-facing indicator(e.g., an LED, a loudspeaker, or a vibrating actuator), or anoutward-facing signal (e.g., an LED, a loudspeaker). The image displaysof each optical assembly 180A, 180B are driven by the image displaydriver 442. In some example configurations, the output components of theeyewear device 100 further include additional indicators such as audibleelements (e.g., loudspeakers), tactile components (e.g., an actuatorsuch as a vibratory motor to generate haptic feedback), and other signalgenerators. For example, the device 100 may include a user-facing set ofindicators, and an outward-facing set of signals. The user-facing set ofindicators are configured to be seen or otherwise sensed by the user ofthe device 100. For example, the device 100 may include an LED displaypositioned so the user can see it, a one or more speakers positioned togenerate a sound the user can hear, or an actuator to provide hapticfeedback the user can feel. The outward-facing set of signals areconfigured to be seen or otherwise sensed by an observer near the device100. Similarly, the device 100 may include an LED, a loudspeaker, or anactuator that is configured and positioned to be sensed by an observer.

The input components of the eyewear device 100 may include alphanumericinput components (e.g., a touch screen or touchpad configured to receivealphanumeric input, a photo-optical keyboard, or otheralphanumeric-configured elements), pointer-based input components (e.g.,a mouse, a touchpad, a trackball, a joystick, a motion sensor, or otherpointing instruments), tactile input components (e.g., a button switch,a touch screen or touchpad that senses the location, force or locationand force of touches or touch gestures, or other tactile-configuredelements), and audio input components (e.g., a microphone), and thelike. The mobile device 401 and the server system 498 may includealphanumeric, pointer-based, tactile, audio, and other input components.

In some examples, the eyewear device 100 includes a collection ofmotion-sensing components referred to as an inertial measurement unit472. The motion-sensing components may be micro-electro-mechanicalsystems (MEMS) with microscopic moving parts, often small enough to bepart of a microchip. The inertial measurement unit (IMU) 472 in someexample configurations includes an accelerometer, a gyroscope, and amagnetometer. The accelerometer senses the linear acceleration of thedevice 100 (including the acceleration due to gravity) relative to threeorthogonal axes (x, y, z). The gyroscope senses the angular velocity ofthe device 100 about three axes of rotation (pitch, roll, yaw).Together, the accelerometer and gyroscope can provide position,orientation, and motion data about the device relative to six axes (x,y, z, pitch, roll, yaw). The magnetometer, if present, senses theheading of the device 100 relative to magnetic north. The position ofthe device 100 may be determined by location sensors, such as a GPS unit473, one or more transceivers to generate relative position coordinates,altitude sensors or barometers, and other orientation sensors. Suchpositioning system coordinates can also be received over the wirelessconnections 425, 437 from the mobile device 401 via the low-powerwireless circuitry 424 or the high-speed wireless circuitry 436.

The IMU 472 may include or cooperate with a digital motion processor orprogramming that gathers the raw data from the components and compute anumber of useful values about the position, orientation, and motion ofthe device 100. For example, the acceleration data gathered from theaccelerometer can be integrated to obtain the velocity relative to eachaxis (x, y, z); and integrated again to obtain the position of thedevice 100 (in linear coordinates, x, y, and z). The angular velocitydata from the gyroscope can be integrated to obtain the position of thedevice 100 (in spherical coordinates). The programming for computingthese useful values may be stored in memory 434 and executed by thehigh-speed processor 432 of the eyewear device 100.

The eyewear device 100 may optionally include additional peripheralsensors, such as biometric sensors, specialty sensors, or displayelements integrated with eyewear device 100. For example, peripheraldevice elements may include any I/O components including outputcomponents, motion components, position components, or any other suchelements described herein. For example, the biometric sensors mayinclude components to detect expressions (e.g., hand expressions, facialexpressions, vocal expressions, body gestures, or eye tracking), tomeasure bio signals (e.g., blood pressure, heart rate, body temperature,perspiration, or brain waves), or to identify a person (e.g.,identification based on voice, retina, facial characteristics,fingerprints, or electrical bio signals such as electroencephalogramdata), and the like.

The mobile device 401 may be a smartphone, tablet, laptop computer,access point, or any other such device capable of connecting witheyewear device 100 using both a low-power wireless connection 425 and ahigh-speed wireless connection 437. Mobile device 401 is connected toserver system 498 and network 495. The network 495 may include anycombination of wired and wireless connections.

The interactive augmented reality system 400, as shown in FIG. 4,includes a computing device, such as mobile device 401, coupled to aneyewear device 100 over a network. The interactive augmented realitysystem 400 includes a memory for storing instructions and a processorfor executing the instructions. Execution of the instructions of theinteractive augmented reality system 400 by the processor 432 configuresthe eyewear device 100 to cooperate with the mobile device 401. Theinteractive augmented reality system 400 may utilize the memory 434 ofthe eyewear device 100 or the memory elements 540A, 540B, 540C of themobile device 401 (FIG. 5). Also, the interactive augmented realitysystem 400 may utilize the processor elements 432, 422 of the eyeweardevice 100 or the central processing unit (CPU) 530 of the mobile device401 (FIG. 5). In addition, the interactive augmented reality system 400may further utilize the memory and processor elements of the serversystem 498. In this aspect, the memory and processing functions of theinteractive augmented reality system 400 can be shared or distributedacross the eyewear device 100, the mobile device 401, and the serversystem 498.

The memory 434 includes song files 482 and objects 484. The song files482 includes a tempo (e.g., beat track) and, optionally, a sequence ofnotes and note values. A note is a symbol denoting a particular pitch orother musical sound. The note value includes the duration the note isplayed, relative to the tempo, and may include other qualities such asloudness, emphasis, articulation, and phrasing relative to other notes.The tempo, in some implementations, includes a default value along witha user interface through which the user may select a particular tempofor use during playback of the song. The objects 484 include image datafor identifying objects or features in images captured by the cameras114. The objects may be physical features such as known paintings orphysical markers for use in localizing the eyewear device 100 within anenvironment.

The memory 434 additionally includes, for execution by the processor432, a position detection utility 460, a marker registration utility462, a localization utility 464, a virtual object rendering utility 466,a physics engine 468, and a prediction engine 470. The positiondetection utility 460 configures the processor 432 to determine theposition (location and orientation) within an environment, e.g., usingthe localization utility 464. The marker registration utility 462configures the processor 432 to register markers within the environment.The markers may be predefined physical markers having a known locationwithin an environment or assigned by the processor 432 to a particularlocation with respect to the environment within which the eyewear device100 is operating or with respect to the eyewear itself. The localizationutility 464 configures the processor 432 to obtain localization data foruse in determining the position of the eyewear device 100, objectspresented by the eyewear device, or a combination thereof. The locationdata may be derived from a series of images, an IMU unit 472, a GPS unit473, or a combination thereof. The virtual object rendering utility 466configures the processor 432 to render virtual images for display by theimage display 180 under control of the image display driver 442 and theimage processor 412. The physics engine 468 configures the processor 432to apply laws of physics such as gravity and friction to the virtualword, e.g., between virtual game pieces. The prediction engine 470configures the processor 432 to predict anticipated movement of anobject such as the eyewear device 100 based on its current heading,input from sensors such as the IMU 472, images of the environment, or acombination thereof.

FIG. 5 is a high-level functional block diagram of an example mobiledevice 401. Mobile device 401 includes a flash memory 540A which storesprogramming to be executed by the CPU 530 to perform all or a subset ofthe functions described herein.

The mobile device 401 may include a camera 570 that comprises at leasttwo visible-light cameras (first and second visible-light cameras withoverlapping fields of view) or at least one visible-light camera and adepth sensor with substantially overlapping fields of view. Flash memory540A may further include multiple images or video, which are generatedvia the camera 570.

As shown, the mobile device 401 includes an image display 580, a mobiledisplay driver 582 to control the image display 580, and a displaycontroller 584. In the example of FIG. 5, the image display 580 includesa user input layer 591 (e.g., a touchscreen) that is layered on top ofor otherwise integrated into the screen used by the image display 580.

Examples of touchscreen-type mobile devices that may be used include(but are not limited to) a smart phone, a personal digital assistant(PDA), a tablet computer, a laptop computer, or other portable device.However, the structure and operation of the touchscreen-type devices isprovided by way of example; the subject technology as described hereinis not intended to be limited thereto. For purposes of this discussion,FIG. 5 therefore provides a block diagram illustration of the examplemobile device 401 with a user interface that includes a touchscreeninput layer 891 for receiving input (by touch, multi-touch, or gesture,and the like, by hand, stylus or other tool) and an image display 580for displaying content

As shown in FIG. 5, the mobile device 401 includes at least one digitaltransceiver (XCVR) 510, shown as WWAN XCVRs, for digital wirelesscommunications via a wide-area wireless mobile communication network.The mobile device 401 also includes additional digital or analogtransceivers, such as short-range transceivers (XCVRs) 520 forshort-range network communication, such as via NFC, VLC, DECT, ZigBee,Bluetooth™, or Wi-Fi. For example, short range XCVRs 520 may take theform of any available two-way wireless local area network (WLAN)transceiver of a type that is compatible with one or more standardprotocols of communication implemented in wireless local area networks,such as one of the Wi-Fi standards under IEEE 802.11.

To generate location coordinates for positioning of the mobile device401, the mobile device 401 can include a global positioning system (GPS)receiver. Alternatively, or additionally the mobile device 401 canutilize either or both the short range XCVRs 520 and WWAN XCVRs 510 forgenerating location coordinates for positioning. For example, cellularnetwork, Wi-Fi, or Bluetooth™ based positioning systems can generatevery accurate location coordinates, particularly when used incombination. Such location coordinates can be transmitted to the eyeweardevice over one or more network connections via XCVRs 510, 520.

The transceivers 510, 520 (i.e., the network communication interface)conforms to one or more of the various digital wireless communicationstandards utilized by modern mobile networks. Examples of WWANtransceivers 510 include (but are not limited to) transceiversconfigured to operate in accordance with Code Division Multiple Access(CDMA) and 3rd Generation Partnership Project (3GPP) networktechnologies including, for example and without limitation, 3GPP type 2(or 3GPP2) and LTE, at times referred to as “4G.” For example, thetransceivers 510, 520 provide two-way wireless communication ofinformation including digitized audio signals, still image and videosignals, web page information for display as well as web-related inputs,and various types of mobile message communications to/from the mobiledevice 401.

The mobile device 401 further includes a microprocessor that functionsas a central processing unit (CPU); shown as CPU 530 in FIG. 4. Aprocessor is a circuit having elements structured and arranged toperform one or more processing functions, typically various dataprocessing functions. Although discrete logic components could be used,the examples utilize components forming a programmable CPU. Amicroprocessor for example includes one or more integrated circuit (IC)chips incorporating the electronic elements to perform the functions ofthe CPU. The CPU 530, for example, may be based on any known oravailable microprocessor architecture, such as a Reduced Instruction SetComputing (RISC) using an ARM architecture, as commonly used today inmobile devices and other portable electronic devices. Of course, otherarrangements of processor circuitry may be used to form the CPU 530 orprocessor hardware in smartphone, laptop computer, and tablet.

The CPU 530 serves as a programmable host controller for the mobiledevice 401 by configuring the mobile device 401 to perform variousoperations, for example, in accordance with instructions or programmingexecutable by CPU 530. For example, such operations may include variousgeneral operations of the mobile device, as well as operations relatedto the programming for applications on the mobile device. Although aprocessor may be configured by use of hardwired logic, typicalprocessors in mobile devices are general processing circuits configuredby execution of programming.

The mobile device 401 includes a memory or storage system, for storingprogramming and data. In the example, the memory system may include aflash memory 540A, a random-access memory (RAM) 540B, and other memorycomponents 540C, as needed. The RAM 540B serves as short-term storagefor instructions and data being handled by the CPU 530, e.g., as aworking data processing memory. The flash memory 540A typically provideslonger-term storage.

Hence, in the example of mobile device 401, the flash memory 540A isused to store programming or instructions for execution by the CPU 530.Depending on the type of device, the mobile device 401 stores and runs amobile operating system through which specific applications areexecuted. Examples of mobile operating systems include Google Android,Apple iOS (for iPhone or iPad devices), Windows Mobile, Amazon Fire OS,RIM BlackBerry OS, or the like.

The processor 432 within the eyewear device 100 may construct a map ofthe environment surrounding the eyewear device 100, determine a locationof the eyewear device within the mapped environment, and determine arelative position of the eyewear device to one or more objects in themapped environment. The processor 432 may construct the map anddetermine location and position information using a simultaneouslocalization and mapping (SLAM) algorithm applied to data received fromone or more sensors. In the context of augmented reality, a SLAMalgorithm is used to construct and update a map of an environment, whilesimultaneously tracking and updating the location of a device (or auser) within the mapped environment. The mathematical solution can beapproximated using various statistical methods, such as particlefilters, Kalman filters, extended Kalman filters, and covarianceintersection.

Sensor data includes images received from one or both of the cameras114A, 114B, distance(s) received from a laser range finder, positioninformation received from a GPS unit 473, or a combination of two ormore of such sensor data, or from other sensors providing data useful indetermining positional information.

FIG. 6 depicts an example environment 600 along with elements that areuseful for natural feature tracking (NFT; e.g., a tracking applicationusing a SLAM algorithm). A user 602 of eyewear device 100 is present inan example physical environment 600 (which, in FIG. 6, is an interiorroom). The processor 432 of the eyewear device 100 determines itsposition with respect to one or more objects 604 within the environment600 using captured images, constructs a map of the environment 600 usinga coordinate system (x, y, z) for the environment 600, and determinesits position within the coordinate system. Additionally, the processor432 determines a head pose (roll, pitch, and yaw) of the eyewear device100 within the environment by using two or more location points (e.g.,three location points 606 a, 606 b, and 606 c) associated with a singleobject 604 a, or by using one or more location points 606 associatedwith two or more objects 604 a, 604 b, 604 c. The processor 432 of theeyewear device 100 may position a virtual object 408 (such as the keyshown in FIG. 6) within the environment 600 for augmented realityviewing via image displays 180.

Referring again to FIG. 6, the method of implementing interactiveaugmented reality applications described herein, in this example,includes a virtual marker 610 a associated with a virtual object(s) 608in the environment 600. With respect to this example, the virtual objectincludes a person or people in the environment. In an AR system, markersare registered at locations in the environment to assist devices withthe task of tracking and updating the location of users, devices, andobjects (virtual and physical), and physical persons or people in amapped environment. Markers are sometimes registered to a high-contrastphysical object, such as the relatively dark object 604 a mounted on alighter-colored wall, to assist cameras and other sensors with the taskof detecting the marker. The markers may be preassigned or may beassigned by the eyewear device 100 upon entering the environment.

Markers can be encoded with or otherwise linked to information. A markermight include position information, a physical code (such as a bar codeor a QR code; either visible to the user or hidden), or a combinationthereof. A set of data associated with the marker is stored in thememory 434 of the eyewear device 100. The set of data includesinformation about the marker 610 a, the marker's position (location andorientation), one or more objects, or a combination thereof. The markerposition may include three-dimensional coordinates for one or moremarker landmarks 616 a, such as the corner of the generally rectangularmarker 610 a shown in FIG. 6. The marker location may be expressedrelative to real-world geographic coordinates, a system of markercoordinates, a position of the eyewear device 100, or other coordinatesystem. The one or more objects associated with the marker 610 a mayinclude any of a variety of material, including still images, video,audio, tactile feedback, executable applications, interactive userinterfaces and experiences, and combinations or sequences of suchmaterial. Any type of content capable of being stored in a memory andretrieved when the marker 610 a is encountered or associated with anassigned marker may be classified as a virtual object in this context.The key 608 shown in FIG. 6, for example, is a virtual object displayedas a still image, either 2D or 3D, at a marker location.

In one example, the marker 610 a may be registered in memory as beinglocated near and associated with a physical object 604 a (e.g., theframed work of art shown in FIG. 6). In another example, the marker maybe registered in memory as being a particular position with respect tothe eyewear device 100.

FIG. 7 is a flow chart 700 depicting a method for implementing augmentedreality applications described herein on a wearable device (e.g., aneyewear device). Although the steps are described with reference to theeyewear device 100, as described herein, other implementations of thesteps described, for other types of devices, will be understood by oneof skill in the art from the description herein. Additionally, it iscontemplated that one or more of the steps shown in FIG. 7, and in otherfigures, and described herein may be omitted, performed simultaneouslyor in a series, performed in an order other than illustrated anddescribed, or performed in conjunction with additional steps.

At block 702, the eyewear device 100 captures one or more input imagesof a physical environment 600 near the eyewear device 100. The processor432 may continuously receive input images from the visible lightcamera(s) 114 and store those images in memory 434 for processing.Additionally, the eyewear device 100 may capture information from othersensors (e.g., location information from a GPS unit 473, orientationinformation from an IMU 472, or distance information from a laserdistance sensor).

At block 704, the eyewear device 100 acquires text from a user input, adata input, or the speech recognition system. The text may be inputtedin one or more of several ways. The input may come from a user inputdevice such as a keypad on a mobile device, such as a smartphone, thatis connected with the eyewear device. The input may come from a mobilecommunication such as a text message from one of the people in the localenvironment, or from a remote user. The text may advantageously comefrom a voice recognition module of the eyewear device 100, wherebyspeech from the user 1001 in the physical environment surrounding theuser may be recorded by as shown in FIG. 10A. In one embodiment, thedevice 100 includes a microphone, and the voice recognition modulereceives speech from the microphone. The processor may identify sound inthe environment by comparing the sound to a sound pattern sored inmemory 434, identifying candidate sound patterns using a conventionalvoice recognition algorithm, comparing the candidate voice patterns toknown voice patterns associated with particular persons in a voicedatabase, and identifying matching voice patterns (identical or within athreshold) as a voice pattern corresponding to the person or people inthe physical environment. The voice may be attributed to the user 1001by directional listening capabilities or voice recognition capabilities1001. When a voice pattern has been attributed to a user 1001, theeyewear device may include functionality to attribute voice recordingsto that person using voice recognition. In one aspect, the userrecognition may be used as a security feature to control access tooperation of the eyewear device 100.

At block 706, the eyewear device 100 generates visual text graphics fromthe acquired text for display at a predefined location in the physicalenvironment. The visual text graphics may be any form of graphic such asa caption as shown in FIG. 10B. The text may include any type ofgraphical element such as emphasis, bold, italic, underlining, or wordart, as well as emoticons.

At block 708, the eyewear device 100 presents the visual text graphic atthe predefined location in the physical environment on the display bythe display system. The visual text graphic may be displayed near aperson 1004 in the physical environment in which the text is attributedbased on voice recognition, or for whom the text is placed by the useraccording to their desired preference. Once the user attributes voice inthe physical environment to a particular person, the voice pattern maybe saved in memory to allow for automatic identification.

FIG. 8 is a flow chart 800 depicting a method for implementing augmentedreality applications described herein on a wearable device (e.g., aneyewear device). The steps shown in FIG. 8 include steps 802, 804, 806,808 which are similar to steps 702, 704, 706, 708 shown in FIG. 7. FIG.8 includes an additional step 810 of altering one or more of theproperties of the visual text graphic to a defined location in responseto input from the user as shown in FIGS. 11A-C.

FIG. 9 is a flow chart 900 depicting a method for implementing augmentedreality applications described herein on a wearable device (e.g., aneyewear device). The steps shown in FIG. 9 include steps 902, 904, 906,908, 910 which are similar to steps 802, 804, 806, 808, and 810 shown inFIG. 8. FIG. 9 includes an additional step 912 of setting the visualtext graphic at the predefined location in the display in response togaze direction of the user, input from the user, or both as shown inFIGS. 12A-B.

FIG. 10A is a perspective illustration of a virtual augmented realityexperience using graphical text display where a user 1001 is wearing theeyewear device 1002, which can be the eyewear device 100 describedabove. In accordance with the method steps described above in connectionwith FIG. 7, the eyewear device 1001 is configured to capture an imageof the physical environment, corresponding to step 702. The physicalenvironment may be an apartment, in which items such as a console 1008,table 1005, potted flower 1006 and rug 1007 may be present in thephysical environment. The eyewear device may acquire text from a userinput, a data input or the speech recognition system, corresponding tostep 704. In FIG. 10A, the user 1001 is speaking the words “Hello” asdepicted by element 1004. In one example, the eyewear device 1002acquires in the form of text the words “Hello” using the speechrecognition module, microphone, or both. In one example, the microphoneis located on another device 1003 that is connected to the eyeweardevice 1002. The speech recognition module may provide capability ofidentifying the user 1001 from among other people in the physicalenvironment as described above.

FIG. 10B depicts the point of view of the user 1001 wearing the eyeweardevice 1002. The lens and display device allows the user to view thephysical environment, including the table 1005, potted flower 1006, rug1007, and console 1008. This view shows an example using the methodshown in FIG. 7 where eyewear device 1002 generates visual text graphic1009 from the acquired text and then presents the visual text graphic atthe predefined location in the physical environment on the display bythe display system. The visual text graphic 1009 may be set against thebackground image of the physical environment. In one example, the visualtext graphic 1009 may be further positioned by direction of the user,and attributes of the visual text graphic 1009 may be altered asdescribed below.

FIG. 11A shows further detail of the device 1103 that is in electroniccommunication with the eyewear device 1002. In one example, the device1103 is a smartphone that can be held in the hand of the user 1101. Thedevice can include inputs that allow manipulation of an attribute of thevisual text graphic 1109. In one example, and the font of the visualtext graphic 1109 may be altered by swiping left or swiping right on thescreen of the device 1103. The visual text graphic 1109 may include abold style font as shown in FIG. 11B. After swiping the device 1103, thefont may change to another style 1110 as shown in FIG. 11C. The user1101 can see the changed attribute in real time in the display of theeyewear device 1002. The attributes available can be arranged in anumber of ways, including for example a menu of options that are setbased on characteristics of the physical environment. For example, arange of colors observed by the display device may be matched to a motifsuch as a color pallet. The user 1101 then may swipe through attributeselections within the motif until a desired attribute is found.

FIG. 12A is a perspective illustration of a virtual augmented realityexperience using graphical text display when a user 1201 can set thevisual text graphic 1210 by directing the gaze to the floor either aloneor in combination with an input of the device 1203. At that point thevisual text graphic 1210 will be set in place in the display of theeyewear device 1202. Thus, a user 1201 viewing the physical environmentthrough the eyewear device 1202 will see the visual text graphic 1201set in the desired location in the environment. In this case, the visualtext graphic is fixed in space relative to the table 1205, plant 1206,rug 1207 and console 1208 as shown in FIG. 12 B.

FIG. 13A is a perspective illustration of a virtual augmented realityexperience using speech with visual text graphics. The user 1301 in thiscase may speak the words intended to be displayed as visual textgraphics. Here, the physical environment includes a table 1305, plant1306, and rug 1307. In this example, the user has spoken the works “MyFlower.” The eyewear device 1302 may include a microphone and speechrecognition module that is configured to recognize speech 1304 of theuser 1301. The spoken word into text that may be stored in memory.

FIG. 13B shows the view through the display 1300 of the eyewear device1302 where the text “My Flower” has been rendered as a visual displaygraphic 1309. The user may alter the attributes of the visual displaygraphic 1309 as shown above with respect to FIGS. 11A-C. The user 1301may set the visual text graphic 1309 at a desired location as shown inFIG. 12A.

Any of the functionality described herein for the eyewear device 100,the mobile device 401, and the server system 498 can be embodied in oneor more computer software applications or sets of programminginstructions, as described herein. According to some examples,“function,” “functions,” “application,” “applications,” “instruction,”“instructions,” or “programming” are program(s) that execute functionsdefined in the programs. Various programming languages can be employedto develop one or more of the applications, structured in a variety ofmanners, such as object-oriented programming languages (e.g.,Objective-C, Java, or C++) or procedural programming languages (e.g., Cor assembly language). In a specific example, a third-party application(e.g., an application developed using the ANDROID™ or IOS™ softwaredevelopment kit (SDK) by an entity other than the vendor of theparticular platform) may include mobile software running on a mobileoperating system such as IOS™, ANDROID™, WINDOWS® Phone, or anothermobile operating systems. In this example, the third-party applicationcan invoke API calls provided by the operating system to facilitatefunctionality described herein.

Hence, a machine-readable medium may take many forms of tangible storagemedium. Non-volatile storage media include, for example, optical ormagnetic disks, such as any of the storage devices in any computerdevices or the like, such as may be used to implement the client device,media gateway, transcoder, etc. shown in the drawings. Volatile storagemedia include dynamic memory, such as main memory of such a computerplatform. Tangible transmission media include coaxial cables; copperwire and fiber optics, including the wires that comprise a bus within acomputer system. Carrier-wave transmission media may take the form ofelectric or electromagnetic signals, or acoustic or light waves such asthose generated during radio frequency (RF) and infrared (IR) datacommunications. Common forms of computer-readable media thereforeinclude for example: a floppy disk, a flexible disk, hard disk, magnetictape, any other magnetic medium, a CD-ROM, DVD or DVD-ROM, any otheroptical medium, punch cards paper tape, any other physical storagemedium with patterns of holes, a RAM, a PROM and EPROM, a FLASH-EPROM,any other memory chip or cartridge, a carrier wave transporting data orinstructions, cables or links transporting such a carrier wave, or anyother medium from which a computer may read programming code or data.Many of these forms of computer readable media may be involved incarrying one or more sequences of one or more instructions to aprocessor for execution.

Except as stated immediately above, nothing that has been stated orillustrated is intended or should be interpreted to cause a dedicationof any component, step, feature, object, benefit, advantage, orequivalent to the public, regardless of whether it is or is not recitedin the claims.

It will be understood that the terms and expressions used herein havethe ordinary meaning as is accorded to such terms and expressions withrespect to their corresponding respective areas of inquiry and studyexcept where specific meanings have otherwise been set forth herein.Relational terms such as first and second and the like may be usedsolely to distinguish one entity or action from another withoutnecessarily requiring or implying any actual such relationship or orderbetween such entities or actions. The terms “comprises,” “comprising,”“includes,” “including,” or any other variation thereof, are intended tocover a non-exclusive inclusion, such that a process, method, article,or apparatus that comprises or includes a list of elements or steps doesnot include only those elements or steps but may include other elementsor steps not expressly listed or inherent to such process, method,article, or apparatus. An element preceded by “a” or “an” does not,without further constraints, preclude the existence of additionalidentical elements in the process, method, article, or apparatus thatcomprises the element.

Unless otherwise stated, any and all measurements, values, ratings,positions, magnitudes, sizes, and other specifications that are setforth in this specification, including in the claims that follow, areapproximate, not exact. Such amounts are intended to have a reasonablerange that is consistent with the functions to which they relate andwith what is customary in the art to which they pertain. For example,unless expressly stated otherwise, a parameter value or the like mayvary by as much as plus or minus ten percent from the stated amount orrange.

In addition, in the foregoing Detailed Description, it can be seen thatvarious features are grouped together in various examples for thepurpose of streamlining the disclosure. This method of disclosure is notto be interpreted as reflecting an intention that the claimed examplesrequire more features than are expressly recited in each claim. Rather,as the following claims reflect, the subject matter to be protected liesin less than all features of any single disclosed example. Thus, thefollowing claims are hereby incorporated into the Detailed Description,with each claim standing on its own as a separately claimed subjectmatter.

While the foregoing has described what are considered to be the bestmode and other examples, it is understood that various modifications maybe made therein and that the subject matter disclosed herein may beimplemented in various forms and examples, and that they may be appliedin numerous applications, only some of which have been described herein.It is intended by the following claims to claim any and allmodifications and variations that fall within the true scope of thepresent concepts.

1. An augmented reality system comprising: a position detection system;a display system; a speech recognition system; an eyewear devicecomprising the position detection system, the display system, aprocessor, and a memory; and programming in the memory, whereinexecution of the programming by the processor configures the eyeweardevice to perform functions, including functions to: capture an image ofthe physical environment using the image capture system; acquire textfrom a user input, a data input, or the speech recognition system;generate, using the display system, visual text graphics from theacquired text for display at a predefined location in the physicalenvironment; present the visual text graphic at the predefined locationin the physical environment on the display by the display system; andenable manipulation of a font style or color of the visual text graphic.2. The system of claim 1, wherein execution of the programming by theprocessor further configures the eyewear device to: move the visual textgraphic from the predefined location.
 3. The system of claim 2, whereinmoving the visual text graphics is in response to a gaze direction ofthe user.
 4. The system of claim 2, wherein moving the visual textgraphics is in response to a hand gesture of the user.
 5. (canceled) 6.(canceled)
 7. The system of claim 1, wherein the position detectionsystem uses the image capture system to capture an image or a sequenceof frames of video data, wherein the visual text graphic is added to thecaptured image or sequence of frames of video data and stored in thememory.
 8. An augmented reality method for use with an eyewear devicehaving a position detection system, an image capture system, a speechrecognition system, and a display system, the method comprising:capturing an image of the physical environment using the image capturesystem; acquiring text from a user input, a data input, or the speechrecognition system; generating, using the display system, visual textgraphics from the acquired text for display at a predefined location inthe physical environment; presenting the visual text graphic at thepredefined location in the physical environment on the display by thedisplay system; and enabling manipulation of a font style or color ofthe visual text graphic.
 9. The method of claim 8, further comprisingmoving the visual text graphic from the predefined location.
 10. Themethod of claim 9, wherein moving the visual text graphics is inresponse to a gaze direction of the user.
 11. The method of claim 9,wherein moving the visual text graphics is in response to a hand gestureof the user.
 12. (canceled)
 13. (canceled)
 14. The method of claim 8,wherein the display system includes a see-through display supported bythe eyewear device and wherein the presenting step comprises: presentingthe visual text graphic on the see-through display.
 15. A non-transitorycomputer-readable medium storing program code which, when executed, isoperative to cause an electronic processor to perform the steps of:capturing sequences of frames of video data with a camera, wherein eachframe of video data comprises depth information for a plurality ofpixels, and wherein the camera is coupled to an eyewear devicecomprising a processor, a memory, and a see-through display; capturingan image of the physical environment; acquiring text from a user input,a data input, or a speech recognition system; generating, using thedisplay system, visual text graphics from the acquired text for displayat a predefined location in the physical environment; presenting thevisual text graphic at the predefined location in the physicalenvironment on the display by the display system; and enablingmanipulation of a font style or color of the visual text graphic. 16.The non-transitory computer-readable medium storing program code ofclaim 15, wherein the program code, when executed, is operative to causean electronic processor to perform the further steps of: presenting thevisual text graphic on the see-through display.
 17. The non-transitorycomputer-readable medium storing program code of claim 15, wherein theprogram code, when executed, is operative to cause an electronicprocessor to perform the further steps of: moving the visual textgraphic from the predefined location.
 18. The non-transitorycomputer-readable medium storing program code of claim 17, whereinmoving the visual text graphics is in response to a gaze direction ofthe user.
 19. The non-transitory computer-readable medium storingprogram code of claim 17, wherein moving the visual text graphics is inresponse to a hand gesture of the user.
 20. (canceled)
 21. The system ofclaim 1, further comprising a smartphone that receives inputs formanipulation of the font style or color of the visual text graphic andcommunicates the changed font style or color to the display system. 22.The system of claim 1, wherein execution of the programming by theprocessor configures the eyewear device to enable manipulation of thefont style or color of the visual text graphic by arranging attributesof the visual text graphic as a menu of options that are displayed onthe display system based on characteristics of the physical environment.23. The method of claim 8, wherein enabling manipulation of the fontstyle or color of the visual text graphic comprises receiving a changedfont style or color of the visual text graphic from a smartphone havingan interface adapted to manipulate the font style or color of the visualtext graphic and displaying the changed font style or color on thedisplay system.
 24. The method of claim 8, wherein enabling manipulationof the font style or color of the visual text graphic comprisesarranging attributes of the visual text graphic as a menu of optionsthat are displayed on the display system based on characteristics of thephysical environment.
 25. The non-transitory computer-readable mediumstoring program code of claim 15, wherein the program code, whenexecuted, is operative to cause an electronic processor to perform thestep of enabling manipulation of the font style or color of the visualtext graphic by receiving a changed font style or color of the visualtext graphic from a smartphone having an interface adapted to manipulatefont styles or colors of the visual text graphic and displaying thechanged font style or color on the display system, or by arrangingattributes of the visual text graphic as a menu of options that aredisplayed on the display system based on characteristics of the physicalenvironment.